Speaker



FIG. 1 is a right side view of a speaker showing our new design, the left side being a mirror image;

FIG. 2 is a rear elevational view thereof, as viewed from the right in FIG. 1;

FIG. 3 is a top plan view thereof;

FIG. 4 is a front elevational view thereof, as viewed from the left in FIG. 1;

FIG. 5 is a bottom plan view thereof; and,

FIG. 6 is a perspective view thereof.

The broken line showing on FIGS. 3 and 5-6 is for illustrative purposes only and forms no part of the claimed design.

The rectangular portion shown within the broken lines on FIG. 4 forms no part of the claimed design. 

The ornamental design for a speaker, as shown and described. 